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Finding the Fourth Proportional to 551,418.20, 827,127.30 and 502,429.40

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Solution

The fourth proportional to 551,418.20, 827,127.30 and 502,429.40 is: 753,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,418.20 : 827,127.30 = 502,429.40 : x
  2. Step 2: Convert to fraction form
    551,418.20/827,127.30 = 502,429.40/x
  3. Step 3: Cross multiply
    551,418.20x = 827,127.30 × 502,429.40
  4. Step 4: Simplify right side
    551,418.20x = 415,573,073,062.62
  5. Step 5: Solve for x
    x = 415,573,073,062.62/551,418.20
  6. Step 6: Final answer
    x = 753,644.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.